Photographic mount



H. FRIEDMAN ET AL 3,077,688

PHOTOGRAPHIC MOUNT Filed Aug. 6, 1959 ATTOQMEY fiuited fates PatentHoward Friedman and Leonard Friedman, New York,

NSL; Frederica Friedman, administratrix of said Howard Friedman,deceased, assignor to said Leonard Friedman Filed Aug. 6, 1959, Ser. No.831,981 2 Ciaims. (Cl. 40-158) The present invention relates to aphotographic mount, and it particularly relates to a method of mountingtransparencies.

It is among the objects of the present invention to provide a simplereadily applied photographic mount which may be utilized in mountingtransparencies so that they may be readily handled for projectionpurposes with assurance that the transparencies will be readily and conveniently positioned within the mount and in register with the windowtherein.

Another object is to provide a simple low cost photographic mount whichwill enable ready mounting of transparencies in cardboard folderspermitting ready and correct positioning of the transparency therein andgiving further assurance that the mount will be squarely and correctlyaligned in respect to the transparency when closed.

Still further objects and advantages will appear in the more detaileddescription set forth below, it being under stood, however, that thismore detailed description is given by way of illustration andexplanation only and not by way of limitation, since various changestherein may be made by those skilled in the art without departing fromthe scope and spirit of the present invention.

In accomplishing the above objects, it has been found most satisfactoryto provide a foldable stiff frame material of cardboard which isprovided with a break line or fold line consisting of a cut of /2, to /abetween the cardboard at the division with spaced perforations extendingthrough the balance of the material.

Although these perforations may be circular in shape and be spaced apartat least the diameter or a greater distance, it has been found that itis most satisfactory to make elongated ovular perforations in thedirection of the fold line which may be spaced apart less than thelength of the perforations.

Since the frame is normally folded once after insertion of thetransparency, the fold line need not stand up under repeated bending,but it should give an accurate fold so that the fold line will beexactly in the middle of the frame and correctly aligned and inparallelism to the side edges of the window.

Furthermore, accuracy in the location of the fold line will assurecorrect register of the opposite windows.

In addition to providing for the location and spacing of thetransparency, a thin paper frame is provided which is attached toone-half of the inside face folder and which will have its inside edgefaced slightly away from the fold line with the other three outside foldedges being aligned with the outside edges of the cardboard folder.

Desirably, the inside face of the folder is covered with a contrastingcolored adhesive which should'be in the preferred embodiment black andwhich is of the heat or heat and pressure sensitive type.

Desirably, the inside face of the folder frame is coated with such anadhesive when the original paper stock is made before cutting andformation of the windows therein.

Desirably, the interior frame is of much thinner stock than the outercardboard folder.

The thickness of the inner frame is about A to /2 the thickness of thecardboard fold, but it should exceed the thickness of the transparency.

ice

Desirably, the inner frame is 1 /2 to 2 times the thickness of thetransparency.

The window in the inside thin frame is cut so that it will be wider andlonger than the window cut in the folder with the overlap being of muchgreater extent along the top and bottom of the window than at the sideso as to give greater support to the transparency.

A particular feature of the present invention resides in the elongatedflap which extends along the long dimension of the window and which isdesirably as wide as the window.

One or two flaps may be provided to receive and hold the transparency inposition.

In addition to a flap or in lieu of a flap, it is also possible toprovide an oblique cut across the outer and inner frames penetratingentirely through the inside frame and part way through the outercardboard frame so as also to form a location flap for locating thetransparency.

Although the grain of the paper stock may considerably vary, it has beenfound most satisfactory to have the paper stock grain extend in thecardboard parallel to the long dimension of the cardboard, that is,transverse to the fold line while in the inside frame, it extendsparallel to the fold line or transverse to the major dimension of thefolder.

With the foregoing and other objects in view, the invention consists ofthe novel construction, combination and arrangement of parts ashereinafter more specifically described and illustrated in theaccompanying drawings, wherein is shown an embodiment of the invention,but it is to be understood that changes, variations and modificationscan be resorted to which fall within the scope of the claims hereuntoappended.

In the drawings wherein like reference characters denote correspondingparts throughout the several views:

FIG. 1 is a perspective view showing the outside of the folder of thepresent invention after manufacture and before being folded with atransparency therein.

PEG. 2 is a perspective view similar to FIG. ,1 showing the inside ofthe folder.

FIG. 3 is an enlarged fragmentary inside view showing the fold line.

FIG. 4 is a transverse sectional line view taken upon the line 44 ofFIG. 3 upon an enlarged scale as compared to FIG. 3.

FIG. 5 is a transverse sectional view of the folder of FIG. 3 taken uponthe line of 55 of FIG. 3.

H6. 6 is an inside perspective view with the folder receiving thetransparency and one of the faces of the folder being partly folded up.

FIG. 7 is a fragmentary perspective View in section showing the positionof the transparency in the finished folder with the folder closed andthe flap holding the transparency in position.

HQ. 8 is a fragmentary transverse sectional View showing the alternativeoblique cut arrangement for holding the transparency in position.

Referring to H65. 1 to 7, there is shown a folder A of cardboard havinga top section B and a bottom section C with an inside frame D on thebottom section.

The fold E is partly cut and partly perforated and is indicated in FIGS.4 and 5.

It has an outside cut section F and an inside perforated section G.

The fiap H is positioned at one side of the transparency I, but ifdesired, two location flaps H may be located on both sides of the Windowopening K in the inside frame D.

In the embodiment in FIG. 8, instead of a flap H, an oblique cut L isemployed and these oblique cuts L may be positioned above and below thetransparency J or the Window opening K.

Referring specifically to the folder A, it will be noted at 2! with aheat and pressure sensitive resinous material which will be of a darkcolor or black to contrast to the white face 21 of the inside frame D.

The white face 21 is devoid of any adhesive, and the frame D isadhesively attached as indicated in FIG. 2 by heat and pressure.

The frame D will leave a relatively wide margin 22 at the top and bottomof the window N and will leave relatively narrow margins 23 at the sidesof the window N so that the transparency will receive its maximumoverlapping support at the top and bottom of the window N.

The inside frame D is spaced as indicated at 24 a distance inside of thefold line E so that when the folder is closed as indicated in FIG. 7, itwill substantially abut the inside of the folded end of the folder withthe perforations.

However, in contacting the edge 24 on the inside frame D, it will bealso noted whereas the window openings M and N are rounded as indicatedat 25 and 26, the window opening in the inside frame D is cut at rightangles with a sharp corner 27 so as to give a combination of correctlocation in the inside frame D with extra strength resulting from therounded cut at 25 and 26 on the outside frame in FIG. 2.

In respect to the perforated fold line B, the V-shaped cut desirablyextends through at least /3 and desirably at least /2 of the thickness Pof the cardboard as indicated in FIGS. 4 and 5.

The perforations G will then extend through the residual thickness atthe fold line E.

These perforations G as best shown in FIG. 3, may be elliptical orelongated in the direction of the fold line with the spacingtherebetween being less than the width of the openings.

if desired, circular perforations may also be employed.

This combination of a cut F with perforations G will assure accuratefolding and alignment of the perforations G along the fold line E.

It will be noted that this cut as shown in FIG. 7 is on the outside ofthe folder whereas the perforations are on the inside of the folder.

To correctly locate the transparency I and permit it to be more readilyinserted, one or both of the long dimensions of the window K areprovided with the flaps H which extend the full width of the window.

The flap H has a cut or indented fold line 28 which permits thetransparency to be inserted therebelow.

Then the edge of the transparency is clamped at one or both sides of thefolder desirably adjacent to the perforations Q when the folder A isclosed with the adhesive facing 20 being permanently pressed against thenonadhesive face 21.

Desirably, both the perforations Q and R at the top and bottom of thetransparency I are positioned on and covered by the wide margins 22 withone or both edges of the transparency as indicated in FIG. 7, beingclamped by the flap H extending the folded width of the window openingK.

The flaps H are formed by die cutting at 29 and indenting at 28 asindicated in FIGS. 2 and 6.

The thickness of the transparency indicated at S should be about A to /2of the thickness of the inside frame D.

The thickness of the inside frame D as indicated by the dimension T inFIG. should be about to /2 the thickness of the cardboard indicated bythe dimension P.

The sharp cut F in the fold line E does not cause any likelihood ofbreakage because normally the folder A will only be folded once afterthe transparency J is inserted as indicated in FIG. 6, and then the topsection B and bottom section C are clamped together with heat andpressure to cause the adhesive face 20 to permanently attach itself tothe surface 21 of the extra frame, D.

In the alternative embodiment of FIG. 8, the inside frame D and thebottom section C are sliced by an oblique knife to form an upstandingedge L which will locate the edge of the transparency I in the manner asis done by the flap H in FIGS. 6 and 7. The transparency I can be seento seat against the the edge L with its lower surface resting on the topof the inside frame D in this embodiment.

In either instance, the transparency is correctly located and then whenthe folder is folded as indicated in FIG. 6, the transparency I isclamped in proper location with correct alignment in respect to bothWindows M and N and with the fold line B as indicated in FIG. 7 beingparallel to the upper and lower edges of the transparency J as well asthe upper and lower edges of the window openings K, M and N.

It is thus apparent that the invention provides a simple reliablephotographic mount which automatically assures alignment of the windowsand fold line and correct positioning of the transparency and which maybe manufactured in large scale at low cost.

The clamping of the edge of the transparency by the flap H or obliquecut L will prevent shifting of the transparency even though it may notmatch the window opening K and even when there is a space between theedge of the window opening K and the edge of the transparency I whichmight permit shifting.

The complete clamping along one or both of the long edges of thetransparency will assure permanent and correct binding or clampingthereof in proper position within the folded frame.

Furthermore, the flap H or the oblique line cut L will aid the assemblerin inserting and correctly locating the transparency.

It is, of course, obvious that the flap H or the oblique cut L may beapplied to the lower edge 40 of the window opening K instead of to theupper edge as indicated in FIGS. 2, 6, 7 and 8.

On the other hand, the flap H as well as the oblique cut L may beapplied both to the upper edge as indicated in FIGS. 2, 6 and 8 as wellas to the lower edge 40 of the window opening K in the top frame D.

The grain of the outer cardboard may extend as indicated by the doublearrow V in FIG. 1, whereas the grain of the inside frame D may extendtransversely thereof as indicated by the double arrow W in FIG. 2.

This will give a stronger construction without interferring with theassembly and will enable thinner stock to be used both for the folder Aas well as the inside frame D.

The inside face of the frame D which encloses but does not position thetransparency is white or lighter in color and is devoid of adhesive. Thetransparency J is positioned at its upper left edge by the flap H orflap L of FIGS. 6 and 8 respectively. The face 20 and also face 22 ofFIG. 2 carrying the adhesive is dark or black colored.

As many changes could be made in the above photographic mount and manywidely different embodiments of this invention could be made withoutdeparting from the scope of the claims, it is intended that all mattercontained in the above description shall be interpreted as illustrativeand not in a limiting sense.

The present application is similar and partly identical in subjectmatter with application Serial No. 649,752, filed April 1, 1957, andalso of Serial No. 859,828, filed October 30, 1959.

Having now particularly described and ascertained the nature of theinvention, and in what manner the same is to be performed, what isclaimed is:

l. A foldable mount blank for mounting rectangular transparenciescomprising a rectangular piece of cardboard elongated in one directionwith a longitudinal axis and with two window sections, said cardboardpiece having a fold line junction extending perpendicularly across saidaxis and bisecting said cardboard piece, said sections having inside andoutside faces, the upper part of said fold line being formed by a gougedout transverse cut extending inwardly about one-half the thickness ofthe cardboard and having V-shaped inwardly convergent sides and havingelongated openings extending through and perforating the bottom of saidgouged out transverse cut, said openings being elongated in thedirection of the cut, and said blank having rectangular Window openingsin each section matching each other when the cardboard piece is foldedabout said fold line and elongated means parallel to one of the sides ofone of said Windows adjacent the fold line and in the inside facesbetween the fold line and the adjacent parallel edge of the window, saidmeans being extended upwardly from said inside face to locate thetransparency.

6 2. The mount blank of claim 1, said elongated means consisting of anoblique cut into the body of the inside (face of the blank giving anupwardly directed projecting feather edge under which the edge of thetransparency may be engaged.

References Cited in the file of this patent UNITED STATES PATENTS

1. A FOLDABLE MOUNT BLANK FOR MOUNTING RECTANGULAR TRANSPARENCIESCOMPRISING A RECTANGULAR PIECE OF CARDBOARD ELONGATED IN ONE DIRECTIONWITH A LONGITUDINAL AXIS AND WITH TWO WINDOW SECTIONS, SAID CARDBOARDPIECE HAVING A FOLD LINE JUNCTION EXTENDING PERPENDICULARLY ACROSS SAIDAXIS AND BISECTING SAID CARDBOARD PIECE, SAID SECTIONS HAVING INSIDE ANDOUTSIDE FACES, THE UPPER PART OF SAID FOLD LINE BEING FORMED BY A GOUGEDOUT TRANSVERSE CUT EXTENDING INWARDLY ABOUT ONE-HALF THE THICKNESS OFTHE CARDBOARD AND HAVING V-SHAPED INWARDLY CONVERGENT SIDES AND HAVINGELONGATED OPENINGS EXTENDING THROUGH AND PERFORATING THE BOTTOM OF SAIDGOUGED OUT TRANSVERSE CUT, SAID OPENINGS BEING ELONGATED IN THEDIRECTION OF THE CUT, AND SAID BLANK HAVING RECTANGULAR WINDOW OPENINGSIN EACH SECTION MATCHING EACH OTHER WHEN THE CARDBOARD PIECE IS FOLDEDABOUT SAID FOLD LINE AND ELONGATED MEANS PARALLEL TO ONE OF THE SIDES OFONE OF SAID WINDOWS ADJACENT THE FOLD LINE AND IN THE INSIDE FACESBETWEEN THE FOLD LINE AND THE ADJACENT PARALLEL EDGE OF THE WINDOW, SAIDMEANS BEING EXTENDED UPWARDLY FROM SAID INSIDE FACE TO LOCATE THETRANSPARENCY.